L5
- 5L (disambiguation)
- Barcelona Metro line 5
- GPS L5
- Gibson L5
- HMS L5
- Haplogroup L5 (mtDNA)
- Home on Lagrange (The L5 Song)
- ISO/IEC 8859-9
- Junkers L5
- L5 (band)
- L5 Games
- L5 Society
- Lagrangian point
- Level 5 (disambiguation)
- Lp space
- Lumbar vertebrae
- Léman Express
- PRR L5
- Ribosomal protein L5
- Stinson L-5 Sentinel
- Strv L-5
- USS L-5 (SS-44)
- Ubiquitin carboxyl-terminal hydrolase L5